Linux – Unzipping file whilst getting correct permissions

It's unlikely that the act of unzipping a file will cause any kind of corruption since decompression is a read-only process. However, there is a small chance that repeated access to the file over long periods could cause the disk sectors on which it resides to become corrupted, since it is a magnetic medium and is subject to wear. To mitigate that risk, you can periodically copy the file to another storage device, delete it on the original disk, and copy it back to the original disk. This will (most likely) result in the file being written on different sectors.